Double-acting pump



(No Model.) 2 Sheets-Sheet 1.

E. R. ADAMS. f

DGUBLE ACTING PUMP. No. 333,808. Patented Jan. 5, 1886.

(No Model.)

H. R. ADAMS. DOUBLE ACTING PUMP.

No. 333,808. Patented Jan. 5, 1886.

` Hllimllmb 2 Sheets-Sheet 2.

N. PETERS. P mmvuxh D, C

f UNITED STATES PATENT OEEICE.

seats of the cylinder.

H. RAYMOND ADAMS, OF MARSEILLES, ILLINOIS.

DOUBLE-ACTING PUMP.

SPECIFICATION' forming part of Letters Patent No. 333,808, dated January 5, 1886.

Application filed September 19, 1885. Serial No. 177,605. (No model.)

To lall whom it may concern.:

Be it known that I, H. RAYMOND ADAMS, a citizen of the United States of America, residing at Marseilles, in the county of La Salle and State of Illionois, have invented certain new and useful Improvements in Double-Acting Pumps, of which the following is a specificatlon, reference being had therein to the acconr panyingl drawings.

This invention relates to certain improvements in doub1e-actingpumps,which improvement-s are fully set forth and explained in the following specification and claims, reference being had to the accompanying drawings, making a part of this specification, in which- Figure l represents a vertical cross-section of a deep-bored well, and a side view of the cylinder in the well, connected with a pumpstock by means of a pipe as it would appear when ready for use. Fig. 2 is a side elevation ofthe pump-cylinder. Fig. 3 is a central vertical crosssection of the same. Figs. 4C and are top plan views of the two annular valve- Figs. 6 and 7 are central vertical cross-sections of the same. Fig. 8 is a top plan view of one of the annular valves of the cylinder. Fig. 9 is a side view of aringgwhich is placed between the two annular valve-seats in the cylinder to hold them the required distance apart. Fig. 10 is a plan view ofthe same; and Fig. 1l isa central crosssection of one ofV the annular valves, such as iS's'hown in Fig. 8.

- The construction of the cylinder is as fol lows: D represents a short section of the cylinder,having its inner ends screw-threaded for connecting it to the other sections of the cylinder through the medium of reduction-couplings. This short cylinder contains the two valveseats V and Z' and their respective valves V and Z. These valves are held a proper distance apart by means of a thin bandring, g. (See Fig. 3.) The section D of the cylinder is connected with the cylindrical section B above by means of a reduction'coupling, E, and the section B forms chamber a above the valves. Valve-seat V is held down toits proper position on ring g' in cylinder D by means of a second and similar band-ring, g, placed between said valve-seat and coupling E. The cylindrical section of the pump-cylinder is connected at its lower end with the lower cylindrical section A by means of the reduction-coupling F, and this section A forms the chamber a2 and contains the pump-cylinder 55 proper. A strainer, I, is attached to the lower end of the cylinder A, and furnishes means for supporting the pump on the bottom of the well, as well as to strain the water before it enters the pump. Valveseat Z', (see Figs. 5 6o and 7,) has a somewhatlarge central opening, X, and a depending screw-threaded ange, X', on which the cylinder Tis screwed in such manner as to hang suspended from said valveseat centrally in chamber a, formed by cylinder A. The annular valve-seat Z is supported in its proper position on the reduction-coupling F. The annular valve-seat V has a central opening, Y, (see Fig. 4,) smaller than opening X of valveeseat Z. said valveseats permit the passage of reciprocating pipe G, as shown in Fig. 3, so its `upper end is presented in chamber a and its lower end in chamber a2. A lift-valve, J, is

attached to the upper end of this pipe Gr, as 7 5 is also the pump-rod R, extending up to the pump-handle, and a double-acting plunger is attached to its lower end and reciprocates in the pump-cylinder T. The lower open end of pipe G is presented-to chamber a?, 8o'

formed in said cylinder between said plunger and the clack-valve m at its lower end. This plunger has two annular flanged packings, b and b', (shown in Fig. 3,) so arranged that packing b will be brought into service on a` downward stroke of pipe G, and so packing b will be brought into service on an upward stroke of said pipe. The pipe G is arranged to reciprocate through valve-seats V and Z, to". 'A Y reciprocate plunger H in cylinder T. A pack- 9C ing such as is shown at Win Figs. 4 and 6, is placed around pipe G on valve-seat V',`and" properly held in place by means of a ring, r, placed over said packing and firmly held down by screws passing into sai-d seat, which packing is for the purpose of preventing too great wear on pipe G, and to prevent the backward passage of water from chamber a.

To the lower end of cylinder T is attached a valve-seat, O, (shown in Fig. 3,) which has a roo central opening, and is mounted by a clackvalve, m, which will open by suction when These openings through 7o' plunger H is raised, and close immediately when the upward movement of said plunger ceases.

To the upper end of cylindrical section B is attached a reduction-coupling, C, for coupling it with the discharge-pipe P, which connects with the pump-stock above.

On the upper part of the annular valves V and Z are formed upwardly-projecting lugs d, as shown in Figs. 3, 8, and 1l, for the purpose of preventing said valves from becoming nonseated by raising too high oif their seats. The lugs of the lower valve, Z, will, when said valve is raised, engage with the lower part of seat V above, and the lugs of valve V, when said valve is raised, will engage with the inner extending rim of the reduction coupling E.

The operation of this device is as follows: Assuming the cylinder to be submerged, and its chambers filled with water, as would be the case when placed in a well, as shown in Fig. l. The normal position of the pumphandle is down, holding up the pump-rod R', as is shown in Fig. l. In such case the plunger` H in cylinder .T would be near the upper end of said cylinder, reducing chamber a therein to small proportions, and chamber a3 would be full of water. As the pump-handle is raised, plunger H is forced down to the p0- sition shown in Fig. 3 by its connection with pump-rod R', by means of which the water inl chamber a3 is forced up through pipe G and out at valve J into chamber a and up pipe P to be discharged through the pump spout. While this downward movement of plunger H is taking place valve V-w-ill close to support the water above it, and the downward suction in cylinder T, caused by the downward movement of plunger H,will raise valve Z, and cause water that has entered chamber a3 through strainer I to flow through the ports u, (see Fig. 5,) in valve-seat Z and into chamber a above plunger H. Vhen the said movement of plunger H is stopped, valve Z will close to prevent ythe Water from escaping back into chamber a, and valve J will also close to prevent water in chamber a from escaping back into chamber a3. When upward movement of4 plunger H takes place, valve V will rise, and water in chamber a will be forced up through the ports n in valve-seat V into chambera and pipe P to be discharged through the pumpspout, and valve m below plunger H will open and water will be drawn up through strainer I and valve-seat O into chamber a3 of cylinder T, and be ready for another downwardstroke of plunger H.

Fig. 3 represents the position of the parts when an upward movement of plunger H is first commenced, showing valve V open to permit an upward passage of water from chamber a', and valve Z closed to preventits escape back through said valve. Said figure also shows valve m open to permit water to enter and fill chamber a3, so that the pump becomes doubleacting and discharges water from the pumpspout at each stroke of the pump-handle.

This pump is especially adapted to use in deep-bored wells of such small diameter that it is not practicable to insert more than one pump rod or pipe in the well, as is shown in Fig. I.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is as follows, to wit:

I. The double-acting pump shown and described, consisting of the combination of the three cylinders A, B, and D, of different diameters, reduction-couplings E and F, for connecting said cylinders, reduction-coupling C, for connecting cylinder B with discharge-pipe P, strainer I, secured to the lower end of cylinder A, annular valve-seat V', having the ports n, central opening Y and packing W, annular valve-seat Z', having the ports u, central opening X, and depending central screwthreaded flange, X, annular band-rings g and g', annular valvesV and Z, having packings V2, held thereon by means of the annular rings and screws V3, pump-cylinder T, having valveseatOand clack-valve m at its lower end, and arranged to hang centrally in cylinder A from the depending screw-threaded fiange of valveseat Z', reciprocating pipe G, having the plunger H at its lower end and clack-valveJ at its upper end, and pump-rod R, all arranged to operate substantially as and for the purpose set forth.

2. In the double-acting pump shown and described, the reciprocating pumping-pipe G, having the plunger H at its lower end and liftvalve J at its upper end, in combination with the central depending cylinder, T, having the elack-valve m at itslower end, cylinder A, and valve-seats V and Z, and valves Vand Z, all located at the upper end of said pump-cylinder` T and centrally in the pump in cylinder D, as and for the purpose set forth.

3. The double-acting pump shown and described, formed of the three external cylinders, A, B, and D, of different diameters and con- IOO nected by means of the reduction-couplings and F, and connected with a supporting-strainer, I, at its lower end and a discharge-pipe, P, at its upper end, in combination with the annular valveseatV,having the annular packing W, annular valve-seat Z', annular valves V and Z, having the valve-packings V3, said valveseats and valves all being located in the c entral and largest cylinder, D, depending centrally-located pump-cylinder T, having the valve m at its lower end, and reciprocating pipe G, having the plunger H at its lower end and lift-valve J at its upper end, all arranged` to` operate as and for the purpose set forth.

4. In the double-acting pump shown and described, the internal cylinder, T, in combination with the external cylinders, A, B, and D, and their couplings, the annular valvesVand Z and their seatsV and Z and valve m, the pipe,

G, having the plunger H at its lower end, and` arranged to reciprocate in cylinder T, and having its upper end provided'with valve J, to project into and reciprocate in the chamber a of cylinder B, in the manner substantially as 5 set forth.

5. The combination of the cylinders A, B, D, and T, reduction-couplings C, E, and F, reciprocating pipe G, having the plunger H and valve J, valves m, V, and Z, valve-seats V, Z', 1o and O, band-rings g and g', discharge-pipe P, and strainer I, and pump-rod R, all arranged to operate as and for the purpose set forth.

6. In the double-acting pump shown and de- H. RAYMOND. ADAMS.

i Witnesses:

J. Q. ADAMS, O. R. ADAMS. 

